FreeCAD — #1 Alternative to AutoCAD / Fusion 360
Flagship LGPL-2.0 parametric 3D CAD modeler, BIM, CAM toolpaths, and FEM solver
Version 1.0+ solves topological naming stability alongside integrated Assembly constraints, Sheet Metal, KiCad PCB enclosures, CNC Path generation, and Python automation.
License: LGPL-2.0+ · Pricing: Free & Open Source · Compare all AutoCAD / Fusion 360 alternatives · Official Website